Device for connecting core-arbors.



E. M. WRIGHT.

DEVIGELPOR commune cons ARBORS.

APPLICATION FILED OUT. 26, 1912. 1973 01 Patented Sept. 9, 1913.

v 2 SHEETS-SHEET 1.

B. M. WRIGHT.

DEVICE FOR CONNECTING GORE ARBORS.

APPLIGA'IION FILED OUT. 26, 1912.

1,073,01 0'. Patented Sept. 9, 1913.

2 SHEETS-SHEET 2.

vwento'o Jam/ d. Wg'yi Vituumw EDWARD M. WRIGHT, OF MADISON HEIGHTS, VIRGINIA.

DEVICE FOR CONNECTING CORE-ARBORS.

Specification of Letters Patent.

Patented Sept. 9, i913.

Application and October 26, 1912. Serial No. 727,964.

To all whom it may concern:

Be it known that I, EDWARD MADISON WRIGHT, a citizen of the United States, residing at Madison Heights, in the county of Amherst and State of Virginia, have invented certain new and useful Improve- I ments in Devices for Connecting Core-An hers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to core arbors and particularly to means for securing adjacent sections of core arbors together.

An object of the invention is to provide a connecting means for arbors which can be readily unfastened after the pipe has been cast. 1 A further object of theinvention is to provide a means for joining the sections of arbors together so that one entire section can be removed from the whole mold.

With these and other objects in view the invention consists in the construction, combination and arrangement of parts as will be hereinafter more fully.described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the drawings: Figure 1 is a plan view of a core arbor with my invention applied thereto. Fig. 2 is an enlarged detail view of a core section with the modified form of my invention attached thereto. Fig. 3 shows a method of applying my invention to the casting of cross pipes. Fig. 4 is a detail of the wedge forming part of my invention. Fig. 5 is a plan view of the key used in my invention. Fig. 6 is a vertical section taken on the line 6-6 of Fig. 1.

Like reference characters indicate corresponding parts throughout the several views in the drawings.

The general embodiment of this invention provides a plurality of core arbor sections, one end or" each of which sections is provided with an extending wedge member, this member being secured to the sections for east integral therewith, as the case may be, and in forming the other ends of each of the sections with openings for receiving the said wedges, and in further providing removable keys adapted to pass through the core arbor sections and wedging means, so

that the arbor may be assembled in any form desired.

Referring to the drawings, the ordinary arbor sections 1 are shown as provided with the usual flanges 2 and supporting Webs 3. Each end 4: of the sections 1 is provided with a longitudinal tapered opening 5, the outer end of the opening being larger than the inner end. The curved section 6 has a corresponding longitudinal opening 7 of the same general contour as that of opening 5, the mouths of the two openings being adapted to aline when the ends of the arbor sections are abutted.

By referring to Figs. 4 and 6, it will. be seen that the tapered wedge 8 is designed to fit within the openings 5. and 7 as the adjacent ends of sections 1 and 6 are brought together. The wedges 8 are provided with longitudinal slots 9 which are designed to be in alinement with vertical slots 10 and 11 formed in the sections 1 and 6 respectively. The-keys 12, having projecting lugs 13, are designed to pass through the slots 10 and 11 and through the slot 9 of the wedge 8. In assembling the core as shown in Fig. 1, one end of the wedge 8 willbe inserted in the opening 7 and one of the keys 12 passed through the vertical slot 11 and driven tightly in place, so that the inner end of wedge 8 fits snugly against the walls of the opening 7. The end a of straight section 1 is then brought adjacent the section 6 in such a way that the projecting end of the wedge 8 is received by the opening .5, after which a second key 12 is driven through the opening 10 and slot 9 until the adjacent ends of the core sections are bound tightly together. After the pipe has been cast, and the sand removed, a bar having a suitable prong is ext-ended into the pipe until the prong is in position to engage the lug 13 and raise the key 12. In this way, the individual sections are made detachable by means of the wedges secured in the ends of said sections.

Although I have shown the means for connecting the sections as a wedge 8, it is to be understood that such wedge could be formed integral with the pipe section as at 14 of Fig. 2, said projections 14: being adapted to enter the opening 5 of the end 4t asin the previous case. The key 12 is then passed through slot 10 and a slot 15 formed in the projection 14: corresponding to the slot 9, the method of securing and uns ening being t e am as hat described in connection with Fig. 1.

Fig. 3 which shows an arrangement whereby cross pipes may be cast, shows two horizontal sections as bound by keys12 to the straight section, it being understood, of

course, that in this case the inner keys 12 will be loosened in order that the horizontal sections may carry the wedges with them in order that the straight section may be withdrawn from the casting.

I claim: I

1. In combination with a plurality of core arbor sections, tapered sockets formed in the ends of the sections, the ends of the sections having slots passing therethrough transfiverse'to the tapered sockets, wedges each end of which is tapered and adapted to enter the sockets, the wedges each having a longitudinal opening therein alining with the slots in the section ends, and keys passing through the slots and openingsin the 999m 9 h Pate t m b bt ned or 3. In comb na io pair of core arbor ends each provided with a wedge shaped opening therein, a wedge provided with a slot adapted to be received by the said open ings, when the arbor ends abut, wedge pins passing through transverseopenings in the arbor ends and through the slot, and 'removing lugs integral with the wedge pins and extending outwardly over the tranverse openings.

4. In combination, a pair of abutting core arbor ends provided with wedge shaped openings, a wedge located within the open ings and slotted along the long axis, the ends of the core arbors being provided with'slots passing therethrough and registering with the slotted portion of the wedge, and wedge pins passing through the slots and wedge and adapted to engage the wedge andarbor ends to force the said ends together the wedges practically filling the slots inthe core arbor ends.

5. In a core arbor section joining device,

a plurality of sections, wedging means engaging the ends of the sections, keys passing through theseotions and wedging means for holding the sections together, and removing means formed by the keys.

In testimony whereof I affix my signature in presence-of two witnesses. p p

' DW. M- WRIGHT.-

Witnesses;

W. D. CAMPBELL, O. A. Common, Jr.

e nt c sh J57 sillrfissi l ill? fiemm ss e e 9f manta Washington, n. G. 

